Hours of Service

The Cambridge Water Department (CWD) is a municipally owned and operated water utility, responsible for the treatment and delivery of water to the residents of Cambridge. Water originates from the Hobbs Brook Reservoir, Stony Brook Reservoir and Fresh Pond water supply system with the occasional supplement from the Massachusetts Water Resources Authority (MWRA) system. The department is also responsible for the preservation, protection, and management of the City's watershed and reservoirs.